﻿ILLUSTRATIONS. 
  

  

  Page. 
  

   Plate 
  I. 
  Spraying 
  against 
  the 
  grape 
  leaf 
  hopper. 
  Fig. 
  1. 
  — 
  Rod 
  and 
  single 
  

   cyclone 
  nozzle 
  used 
  to 
  apply 
  spray 
  to 
  underside 
  of 
  grape 
  foliage. 
  

   Power 
  supplied 
  by 
  tractor 
  sprayer. 
  Vineyard 
  of 
  Mr. 
  H. 
  H. 
  Harper, 
  

   North 
  East, 
  Pa. 
  Fig. 
  2. 
  — 
  Rod 
  carrying 
  two 
  cyclone 
  nozzles 
  used 
  

   to 
  apply 
  spray 
  to 
  underside 
  of 
  grape 
  foliage. 
  Power 
  supplied 
  by 
  

  

  compressed 
  air. 
  Vineyard 
  of 
  Mr. 
  A. 
  I. 
  Loop, 
  North 
  East, 
  Pa 
  4 
  

  

  II. 
  Comparison 
  of 
  sprayed 
  and 
  unsprayed 
  plats. 
  Fig. 
  1. 
  — 
  Showing 
  con- 
  

   dition 
  of 
  vine 
  injured 
  by 
  grape 
  leafhopper 
  in 
  unsprayed 
  plat. 
  

   Note 
  loss 
  of 
  foliage 
  and 
  also 
  berries 
  from 
  clusters. 
  Vineyard 
  of 
  

   Mr. 
  W. 
  E. 
  Gray, 
  North 
  East, 
  Pa. 
  Fig. 
  2.— 
  Showing 
  condition 
  of 
  

   vine 
  in 
  plat 
  sprayed 
  with 
  tobacco 
  extract 
  No. 
  1 
  against 
  grape 
  leaf- 
  

   hopper. 
  Note 
  larger 
  size 
  of 
  berries 
  in 
  clusters, 
  heavy 
  foliage, 
  and 
  

   stronger 
  cane 
  growth. 
  Vineyard 
  of 
  Mr. 
  W. 
  E. 
  Gray, 
  North 
  East, 
  

   Pa 
  8 
  

  

  III. 
  Spraying 
  against 
  the 
  grape 
  leafhopper. 
  Fig. 
  1. 
  — 
  Gasoline 
  engine 
  

  

  sprayer 
  supplying 
  power 
  for 
  two 
  "trailer" 
  leads 
  of 
  hose 
  in 
  spraying 
  

   against 
  grape 
  leafhopper. 
  Vineyard 
  of 
  Mr. 
  J. 
  E. 
  Beatty, 
  North 
  

   East, 
  Pa. 
  Fig. 
  2. 
  — 
  Gasoline-engine 
  sprayer 
  supplying 
  power 
  for 
  

   two 
  "trailer" 
  leads 
  of 
  hose 
  in 
  spraying 
  against 
  grape 
  leafhopper. 
  

   Vineyard 
  of 
  Peacock-Rood 
  Co., 
  Westfield, 
  N. 
  Y 
  8 
  

  

  IV. 
  The 
  grape-berry 
  moth 
  (Polychrosis 
  viteana). 
  Figs. 
  1, 
  2. 
  — 
  Adult 
  or 
  

  

  moth. 
  Fig. 
  3. 
  — 
  Full-grown 
  larvae. 
  Fig. 
  4. 
  — 
  Pupae 
  16 
  

  

  V. 
  Injury 
  to 
  grapes 
  by 
  larvae 
  of 
  first 
  brood 
  of 
  the 
  grape-berry 
  moth. 
  

   Fig. 
  1. 
  — 
  Showing 
  destruction 
  of 
  portion 
  of 
  grape 
  cluster 
  as 
  a 
  result 
  

   of 
  boring 
  of 
  larva 
  into 
  stem. 
  Fig. 
  2. 
  — 
  Showing 
  cracking 
  of 
  infested 
  

   berries 
  and 
  also 
  the 
  way 
  in 
  which 
  berries 
  first 
  attacked 
  are 
  secured 
  

   by 
  web 
  to 
  berries 
  which 
  are 
  attacked 
  later 
  in 
  the 
  development 
  Of 
  

   the 
  larva 
  24 
  

  

  VI. 
  Injury 
  to 
  grapes 
  by 
  larvae 
  of 
  second 
  brood 
  of 
  the 
  grape-berry 
  moth. 
  

   Fig. 
  1. 
  — 
  Showing 
  clusters 
  of 
  Concord 
  grapes 
  from 
  which 
  infested 
  

   berries 
  have 
  been 
  removed. 
  Fig. 
  2. 
  — 
  Injury 
  to 
  berries 
  by 
  larvae 
  

  

  just 
  previous 
  to 
  harvesting 
  of 
  fruit 
  24 
  

  

  VII. 
  Outdoor 
  rearing 
  shelter 
  and 
  cage 
  used 
  in 
  life-history 
  studies 
  at 
  North 
  

   East, 
  Pa. 
  Fig. 
  1. 
  — 
  Portion 
  of 
  outdoor 
  shelter 
  used 
  in 
  the 
  rearing 
  of 
  

   insects 
  during 
  1909. 
  Fig. 
  2. 
  — 
  Cage 
  built 
  over 
  grapevines 
  in 
  which 
  

   the 
  generations 
  of 
  the 
  grape-berry 
  moth 
  were 
  reared 
  during 
  1909 
  . 
  . 
  -V2 
  

   VIII. 
  Spraying 
  against 
  the 
  grape-berry 
  moth. 
  Fig. 
  1. 
  — 
  Showing 
  size 
  of 
  

   grape 
  berries 
  at 
  second 
  spray 
  application 
  about 
  the 
  time 
  many 
  of 
  

   the 
  first-brood 
  eggs 
  of 
  the 
  grape-berry 
  moth 
  arc 
  deposited 
  on 
  them. 
  

   Fig. 
  2.— 
  Trailer 
  method 
  of 
  vineyard 
  spraying 
  in 
  order 
  to 
  apply 
  the 
  

   Bpray 
  to 
  the 
  underside 
  of 
  the 
  foliage 
  or 
  to 
  the 
  grape 
  clusters 
  where 
  

   the 
  foliage 
  is 
  dense 
  ( 
  h> 
  

  

  IX. 
  Fig. 
  I.— 
  Cherries 
  injured 
  l>\ 
  the 
  cherry 
  fruil 
  sawfh 
  (Hoplocampa 
  

   coolrei). 
  Pig. 
  2. 
  EjJntn 
  nee 
  and 
  exit 
  holes 
  of 
  the 
  berry 
  fruit 
  saw- 
  

   fly 
  . 
  76 
  

  

  Y 
  

  

  